Chemistry and Physics: Recent submissions
Now showing items 21-40 of 50
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Efficacy of Silica Polyamine Resins in Remediation of Highly Contaminated AMD
(2008-04-01)Acid mine drainage (AMD) is an ongoing problem in Montana and remediation is very expensive. New silica polyamine resin technology offers an effective alternative to traditional polystyrene resins in terms of metal recovery. ... -
Spatial Variation of Heavy Metal and Arsenic Distribution in Surface Water Assessment: Alta Mine Creek, Corbin, Montana
(2008-04-01)The objective of this research was to determine if variability exists in the spatial distribution of arsenic, lead, iron, zinc, copper, and cadmium in the surface water of Alta Mine Creek, near Corbin, Montana. Alta Mine ... -
Synthesis of (Bi2Te3)x(Sb2Te3)y and (TiTe2)x(Sb2Te3)y(TiTe2)x(Bi2Te3)z Superlattices: An Investigation into Thermal Conductivity Dependence on Superlattice Period
(2006-04-01)There is disagreement concerning the effect superlattice period has on thermal conductivity. Accordingly, Bi2Te3/Sb2Te3 and Bi2Te3/TiTe2/Sb2Te3 superlattices were synthesized to determine whether differing thicknesses of ... -
Approaches Towards the Syntheses of New Molybdenum Complexes as Models for the Active Site in Nitrogenase Enzymes
(2005-04-01)The present study aims to mimic the catalytic properties of the Mo center in the active site of the nitrogenase enzyme. The phosphorous-sulfur ligands PS3, PS3’ and PS3* were used to synthesize Mo-thiolate complexes of the ... -
Eddy Covariance Flux Determination of MBO Using the Fast Isoprene System
(2004-04-01)Experimentation into the dehydration reaction of 2-methyl-3-buten-2-ol (MBO) to 2-methyl-1,3-butadiene (isoprene) sought to utilize the Fast Isoprene System (FIS) for MBO eddy covariance flux measurements. It was hypothesized ... -
Synthesis of (3S)-(+)-diethyl-2-(l-oxoethyl)-5-phenyl-(3 N-p-Toluenesulfinamido) pentylphosphonate
(2004-04-01)It has been found that reactions between pentacovalent oxaphospholenes (P(V)) and various electrophiles produced substituted phosphonates under mild conditions. Using an imine as an electophile with the oxaphospholene would ... -
Examination of Ionization Efficiency of Silyl Compounds Using a Flowing Afterglow
(2003-04-01)Breath analysis is a noninvasive diagnostic technique used to detect several human deficiencies and diseases. Increased concentrations of particular volatile organic compounds (VOCs) are observed in individuals with problems ... -
E Z Stereoisomerization in Methylene bis-Dithiocarbamate and N,N,S Trimethyldithiocarbamate
(2003-04-01)Rates of rotation about the carbon-nitrogen partial double bond in N,N,Strimethyldithiocarbamate (1) and methylene bis-dithiocarbamate (2) were measured by the dynamic NMR technique known as selective inversion recovery. ... -
Secondary Metabolites From Montana Isolates Of Penicillium
(1999-04-01)Extracellular and intracellular secondary metabolites were extracted from w different cultures of Penicillium, isolated mostly from rust galls on lodgepole and ponderosa pine in Montana. Extracts containing the fungal ... -
Preparation Of D-Glucose-6-Phosphate Dehydrogenase And Its Substrates Prior To Reactivity With Ozone
(1996-04-01)Ozone is becoming more important in the area of disinfection of water and food. In order to determine how much ozone is needed to inactivate microorganisms that contaminate water and food supplies, the mechanisms of ozone ... -
Slag Recycling Of Irradiated Vanadium
(1995-04-01)An experimental inductoslag apparatus to recycle irradiated vanadium was fabricated and tested. An experimental electroslag apparatus was also used to test possible slags. The testing was carried out with slag materials ... -
The Infrared Spectrum Of Dichloromethylene And Difluoromethylene
(1973-04-01)This paper attempts to study the infrared spectrum of possible free radicals obtainable from the parent gas dichlorodifluoromethane. -
Philosophical Concerns of Chemistry, Physics and Mathematics
(1972-04-01)This thesis is written in the hope of providing a conspectus of the philosophical concerns of the intermingling branches of chemistry, physics and mathematics. Different perhaps are their names and some of their goals, hut ... -
Optimal Conditions For The Enzymatic Reaction Lactic Acid Dehydrogenase / Lactate
(1970-04-01)Enzymes are vital for metabolic processes in any living organism. If the function of enzymes is restricted or their concentration changed, drastic changes may come about within the organism. Enzymes act as catalysts to ... -
The Effeet of Various Levels of DDT on the Carbohydrate Metabolic Process of Rats
(1970-04-01)Much controversy has arisen in the 1950’s and 196O’s over insecticides and their effect on soil, plants, and creatures of the earth. This controversy, brought to the attention of the general public by Rachel Carson’s Silent ... -
A Study Of The Synthesis Of Polyvinyl Alcohol
(1967-04-01)Polyvinyl alcohol is a high molecular weight polymer whose repeating unit is CH2-CHOH. From this the expected monomer from which polyvinyl alcohol would be produced is vinyl alcohol, CH2=CHOH, however, vinyl alcohol does ... -
The Reversible Denaturation Of Oxidized Cytochrome c At pH 2.9
(1967-04-01)The physico-chemical study of biological molecules is a rapidly expanding area of investigation which allows an examination of the relation of biological process to molecular structure. The structural relationship of DNA ... -
The Effect Of Temperature On the Standard Oxidation-Reduction Potential Of The Ferricyanide-Ferrocyanide System
(1966-04-01)It is the purpose of this .investigation to determine the temperature dependence of S°, that is, 3° as a function of the variable T. Prom this data an entropy difference can be obtained for the total cell reaction (2). The ... -
A Qualitative Analysis Of Electrical Discharge In Air
(1962-04-01)The purpose of this paper is to present the fundamental ideas of the gaseous electrical discharge and to experimentally verify those presented ideas. Chapter I deals with the theoretical description of the discharge in a ...